Function: 1. Wide Application: The sensor can detect coal gas, natural gas and liquefied petroleum gas, which greatly guarantees the safety. 2. Imported chips: intelligent control, self-detection, effectively prevent false alarms, more stable and reliable to use. 3. Alarm mode: Sound and light alarm, when the gas leakage reaches a certain concentration, the alarm indicator flashes red. 4. Alarm parameters: The alarm sound pressure is 85dB/m and the alarm concentration is 10%LEL. 5. High Quality ABS: The detector is made of premium materials, with high strength, high sensitivity and good performance. Specification: Item Type: Gas Detector Material: ABS Usage: Household Voltage: 90-240V Warm-up time: about 60 seconds Alert concentration: 10% LEL Alarm indicator: flashes red Alarm sound pressure: 85dB / m Installation method : wall mounted Working temperature: -10 to 50 Alarm mode: sound and light alarm Package List: 1 x Alarm 2 x screw 2 x expansion tube 1 x fixed plate; 1 x Manual Install in a suitable place, turn on the power, in case of gas leakage, the alarm will sound and light up when it detects a concentration greater than or equal to 10% LEL.